{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf8d36fc1394bacfdd57c12958cbe2fdd4c809b2f0f459573ba1eb6b9bb7b532f",
    "signature": "0xa007e4a2f5cf068fda11265913ab4b0b83e07206e8bf9cf7059e865db1b209a9041bb7b2ac41f827878c59bb780807466a90323aeb7b62c037e1650a932940491b",
    "signer": "0xd8Db0315a913d660d969AB9854141E3e3f64dfc0",
    "userId": "693642610"
  }
}