{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b6839214cb3df407c5d57fcb6e0113ac795dae43b134942818693d8dfe5a253",
    "signature": "0xc257a491cd2713eff69559c214fa3886db21fc8a4dde2f9d124bb897b6661c305381cbbd584e6573876b1c71aab99c2c18921bd6da9734bdc73b6d4c0bcf2f131b",
    "signer": "0x9abB026200c8789A63bEe1891f6C41B319e94634",
    "userId": "436935370"
  }
}