{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348321",
    "entityType": "User",
    "nonce": "0x09393017d649e04689ce0297d176c4b8a003bbab9b3d67c83737c1cd22d18b8c",
    "signature": "0xae6cb2b0ac2eb3f2ba1fe1ce638c6badc35ef936d0de618e4c7de6e5b05129633df24474b623a57dcb7138a9a90cad4b416dff8105fef053c553031f11cbff0c1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}