{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1ae0adab612db75d5525de1d69d2e48ca88d7570b36df4fe1281beb7f5adc2eb",
    "signature": "0x9bf45443936cc31261a08e821c451c7b9e60930b096b9e6f5d8f637dc8682e44256ac0b0f1bebc4927395fdb13b1e55005a27481df15170c0e2fcffd129b52c11c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}