{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "631914512",
    "entityType": "User",
    "nonce": "0xa70a40b73e9f167e6d4d3065e935667fc0516e7bf83c168da8127120e7a74f30",
    "signature": "0xbd6bebce481842fec5f76b83fec82e1ff67f8ef73660a535c7d95766f6161b1e77aa58554944355aa12ba35a8cd5332e18574c9b3797aa75ea563699ff101d771b",
    "signer": "0x99184440Ee6a129090E49a1c231270aBC49a9427",
    "userId": "21285244"
  }
}