{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7003",
    "entityType": "User",
    "nonce": "0x0b734930aa3db214003877712324ac324d770260f68ba409c715765ca295ac65",
    "signature": "0x4852f83ec63aefc0a93207f04f89ccda6610bc922b604031e7facbf63410d0f139595ddea7cd7c436a4d01867e4e7f5b05492a9b76d721f0e3e62217ca1122a61c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}