{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61620",
    "entityType": "User",
    "nonce": "0xd50eb4abed0d4b71f6b032446c7fd814526d8e3b7a34fa9e6373d0567cbf6e02",
    "signature": "0xb9a144a1a1b5d89f75a7ad790765cd8855771a387fb24aa0da62601764da4df326508c106e69cb59f7ab60e4b3f77f37d5c2678083a22f262358ec1dd52765181c",
    "signer": "0xD55DC3bb788f477f695183900Fff41982fa8ecfF",
    "userId": "677613980"
  }
}