{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56534466",
    "entityType": "User",
    "nonce": "0xaa3ba556faf70be025bcb9e51b5d7a920cd3fc2fbdfc3434d98603aaa02e264e",
    "signature": "0x5010b50657ed0e176fae217473996ede633a1daf49275e408f163eab8e69ff7619cc2467fd07fd8296bcfa14acc3bcddfae29aa30b65a9f83f7da8589e53e0d01c",
    "signer": "0x134f5c1f8716402474824c6A0AE855af1E3053eB",
    "userId": "462352719"
  }
}