{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "581700621",
    "entityType": "User",
    "nonce": "0xc9180238cf1153c55214ba4000c5c5887b6589f262e0445be1e8f65f599ee798",
    "signature": "0xf9e11b6e64751fa580e0e33078df75f068d8fd6feaed505f5339dc3cfbde58881888dc7cd945bb8a3392f47e7e0a01fb3713a0ffa53baac1db85f8c60e1ea7631c",
    "signer": "0x385724dD7df996433e732c73201a749C6B37f65A",
    "userId": "260480467"
  }
}