{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0x4bbf593bfad70cc8682ed53c9f5c118f1670d7a4cb423a97a42cce27a5cbb797",
    "signature": "0x8ec526b106672d9ed6a9b3ffcb060f0628b5593d3822adc7e4d24270897666512f0983d838b5826cf2c707ead575518509ec013040bc468ba146ae90f22d75e41b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}