{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871265248",
    "entityType": "User",
    "nonce": "0xd5f33d770c44258da1f621425f2d34af8da00d1acee72fe3f2e61331e829000e",
    "signature": "0x2a77728c3811cb015e7cffcf0337bf96367f93e249bd201331d228e8df42665e3984c88740ee1ac7d9e88e7a1db956ec78b30888bc4e2aa3e1499df6473d8be91c",
    "signer": "0xe1EBB2b0eed447a94b95294C357cc71235152A13",
    "userId": "888593291"
  }
}