{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735650",
    "entityType": "User",
    "nonce": "0xb1fa80245da25d131ec59172b7b690b3c78446ea029ab7cfc42a8b449e98a48d",
    "signature": "0x97e4d380131cebb297f7d006f58c7993a3384673f0c21dd46fbbebb8c461bbe479f43921548d17ef5dab7f9e7b8d3de2d6f79d5cafce7a8aaafeb6e7972c9a511b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}