{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323361833",
    "entityType": "User",
    "nonce": "0x745fb12e036a5a002d072cfc117fd356a0f7fe8de63d144ab3bdb471acb1736c",
    "signature": "0x6c96d60bee89270f69aafe86bd1f7154e50c41ac3c1bd6f6ebf6e2e8e642acaa5c9f13c9d810bf7640ae233ea3dd973bf6959da896f30ba8b653aab4f51781f21c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}