{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353528",
    "entityType": "User",
    "nonce": "0x217f49b476911566efae6415563bb0fd10577003b5e9bf8bb01cdf2f3d5c0fda",
    "signature": "0x608c5c3e60c75989e8f002fa12e0f28facd3b96a7c1c6298dae6957c219979db30798b9e1ed540f5d224e1481735b6ea3a06acf786b3b53f8cd7500b033850771c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}