{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "229431",
    "entityType": "User",
    "nonce": "0x30abbab80244420cb032cf190946c30fbe6e13ee5b73d1443301d4bf38766a1a",
    "signature": "0x9898aa2877377e0bc94f031c1dd0568bbdf68efe199fccd2f781de609342e497587d0a60109166d4acbeb10f337052ce0570111738a3451738e187e813bf52a71c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}