{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x3c8598a670b06bf9f7a9e95e5a933e4aab578eb491c95e3efc7141c0ca98ce24",
    "signature": "0x7572c9ecab8b0d5e5765041006569cf64fb4f4103ae33af8d70e3c358b4e14c76247518d062e07b0b36ae7dfe3ecf843cf741a65576cbf204994f4d1e82dc0d41c",
    "signer": "0xF0Ec7D424448ce71cAE7087981F95e01CCfAF500",
    "userId": "893029358"
  }
}