{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x850ee48b2e2d81fc8275c7e2524c61b0ab36b6d51c4818d896ed1c17ef2e19ba",
    "signature": "0x20dd744ac0dfac0187f93ec32b61e99b9e9680839fc1c7f8ee0e67b508d6437231eae8d27eebd9cc18a23241749ea9550791e7d607d22067311cd09595b1a9791c",
    "signer": "0xc8058E46307758680C1689E59a501CE35F473e96",
    "userId": "425422989"
  }
}