{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157466",
    "entityType": "User",
    "nonce": "0xad4e550fd1e3c67b963fe6d9b6b7659cbb31c884af8f509f851d7610c7010cc4",
    "signature": "0x5d5dcb7ee647ee67903a5abef053e2bb2528b77bcea932be607d9014bfa0255564fba328e747d915451031552cf8e9f78eec8589d78211de40ea8970e268072e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}