{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140414",
    "entityType": "User",
    "nonce": "0xfe6315fc9d1e1cec903f9ca87c65ea917dc00f7a84538cea46fd7d37b9f2a0c5",
    "signature": "0xff40177c17b023560ebc0012cf8130d468eb8a015cd081b605b3f660551ebf0716ca58cd288ecb09eafab9a3516263545e2538731ffa77888bef36c3eedf7cb91c",
    "signer": "0x69d1592ed76BC3Cd9A2ed561f96E8Eed4AcAf835",
    "userId": "668195862"
  }
}