{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2522",
    "entityType": "User",
    "nonce": "0x5cf0104c1aa955e9976425ec345c77c741605d9ba83de5f7d5212e26af11ed89",
    "signature": "0x3130b64dd4c77848dca25c74d8cc843089293ab8e551b7f9e9641517dc73f3a31b34f08f9713418be7ab1bd6d4fe9f7c87f38c05b5456394a737808db4aaadf21b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}