{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937139185",
    "entityType": "User",
    "nonce": "0xfb8b48d9cca005f9649c5af82cfb8f42e4417fd04d41f1c082a3311996be148b",
    "signature": "0xd8d7a1ff86a30efb74baf4ca98076f15758f117f024daaa9d0aff3de25d3b41c5845fda977b04930b79463c8bfaa82f52d9d205705b28f6a959b7943a36cce121b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}