{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14223",
    "entityType": "User",
    "nonce": "0x048b8009875e25abf0dfa09508e48c5941fff695a61a3fbc1467fb8ae9513ae4",
    "signature": "0x690cfd81678d6690497ff7bdee9b97315a8fb649fd98e3eca02f7d851991865705c0ff3c69dcfd481f0ed29ff50f3fa8f5f1d955be27e78986800b5bd7a296271c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}