{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xe1b33a0b444bf58790b6ac25c787b9e5d4ec76fe0a3757ca48ab4dcce1b1d21c",
    "signature": "0x89bdcd43ccfc891ccb95813c78898d9dcb29de4c268d8ea57d1b6308b19a8fcf782ef51344c6dc7d51f9d98bafc949bba1d19dc53e99cdc62043fd58ca79756b1c",
    "signer": "0xf3eC8D1463A23CdDd8e3137d4e971DAD05FB11ea",
    "userId": "451435291"
  }
}