{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191315561",
    "entityType": "User",
    "nonce": "0xa973e7214fe8c52ebee39cfce0251f6d69269fc09ffe428ef47615341a3516f1",
    "signature": "0x252dae82393f4af88d7285a7afc9417beda5880cc1dc6cab937023f38986258920ada83f48d20f669209418da1dfefd06bcb08e86e62373c4326b2f299dac3bd1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}