{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68354",
    "entityType": "User",
    "nonce": "0x9e90e3ff4d5b1b9402d41a360d593b842ab5828b39b11e40746d880d39c1f4b8",
    "signature": "0xb7efb5880a2d2d8af9fdcbfc5a73d5e536291f896c20e915e2c6c4bb91abb8ae03fe610d256e2d83db24827ba592cce07b3f46a86c219aaca679b8797657f17c1b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}