{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281584225",
    "entityType": "User",
    "nonce": "0xf41384ea97c1c07bdadea96e05ae7451fd3280be7b403271b04583d1078a7256",
    "signature": "0xb09b09c8cd09a2b10c818a17f25100be286f0bd529159e5ac6b97bbff24026f90142efe70328f85a59b1464d3a6a00113e5c9178d57ea08926103f58809e11dd1c",
    "signer": "0x38b7AB9474A04dF6f214127Fdf6c1ADaADF5926E",
    "userId": "571039733"
  }
}