{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0x007d0d2e1e420fc661337006a41d0e730760f6a6dac14743ed825d0d5ba99f61",
    "signature": "0x0fb94a72943e7e19452210329081eb13f6d6a38fd95b7207b1ce9955f077032b648c135bd717cd8c163e177e00b841f7a78bbdd502a727ad03aecf71f4531f5a1b",
    "signer": "0xa7B72be225A796b97FD34C11f9D57337bb58B341",
    "userId": "883910521"
  }
}