{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1487578",
    "entityType": "User",
    "nonce": "0xdc081738bb126d494621dae858bd1e5cbd662af79888c00a5210d5c6d46da19a",
    "signature": "0xb75ab5558f522213808ced1143e3f951a44ce95d1f927f5bac8c54fb5d009dda1237297f70541df06422853e38e535ae7eaa42b915210ed31caa38b2c5af8cc71c",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}