{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6a967a7f3bf77c143cd47dbe1729c825bfdd0709ea5ae53f4e0271ffb5cab28",
    "signature": "0x5fc85a3a21c227fdefc77f90176e639140ad22a240258f81f349c301fa5c630402d0ae36249dcc884b4e8b1337ce249799495de4ce9281ba774228df839345031c",
    "signer": "0x1523dBDd49A653271BD1F378eF3fc77B20b4f2C1",
    "userId": "315268152"
  }
}