{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881582609",
    "entityType": "User",
    "nonce": "0x8dbe51e9f255913bda735742697f288252820c0ea60de144218de8e97f64b328",
    "signature": "0x0845660f8331007a6faa5dbd642feea9da5ae7a087ba50cc65acf0dd8d2440581ad350f6f1aa965ccc2bb601a5a621a550fda5353b056c0a7ef3dbf67aae444b1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}