{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50262074",
    "entityType": "User",
    "nonce": "0x4a5a20a8e44e407329514e1173b54c099e3cab759c3ab064a8b3b4543607bf3c",
    "signature": "0x9de1909ecb14fc35a466eda0708ef15d83276e2992be4a2e85fe2b98c0f65d2d330c920412918bdc38fd6b75c4345689142729ae108258486f4b65df71a9b0a01c",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}