{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2749",
    "entityType": "User",
    "nonce": "0xaf07130f5632739a00e673392c72f898d429a8fb043149a034dba04af9502f44",
    "signature": "0x05c7d68a94b2204946c3aa759fa964489b9933f7ea428df776e89c05c77cc717014a7d48e51c60ee5f3e246998deeb03c3760906a793d3d8cc4bac65c9e7cede1c",
    "signer": "0x4810fE66B3A42DA4cb34b622aD9A069C293c6b86",
    "userId": "445042807"
  }
}