{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae76bbd02331d61e06f4697ca509dab3b90f38d024324e8656da3b900385f895",
    "signature": "0x4ce44e3571b75f9fd96b9f74328fcd24f872546ab08077efe7e8f6a561ff6f733edc9c645be2d6551cdef4d9ebc76e4444a7ec1341de2d80f4a7f36eecc2f3881c",
    "signer": "0x9C3E1c39369D946822796b081852F311dFD1AEb5",
    "userId": "294737963"
  }
}