{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x7c7d65ec157c86aec5962a1b40fc5331219f06c60579b255a67a7d1d779aaf5c",
    "signature": "0x848ce547bda3bf3fefeafb606239e1b7b04dd0ee77bb21e50a648c4e0fc3eed319ccd792ffa67cfad199a12178c595c5aaa421ca8bc61c189bdc23d6d7edc8a91c",
    "signer": "0xd2d78f9b62b3956830b58248CcD3C59911Dd6E58",
    "userId": "846847743"
  }
}