{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977815577",
    "entityType": "User",
    "nonce": "0xe32dc306a62f680623ed668787ad1bd2884f2f861691224ed538919bbfe6e17a",
    "signature": "0xa0ae66c63c75644c8e9175de24074be8d05d31bb141c0196353db688e4843e6628ed36dd5a05d1d203777a164885d066957f405086e1d00708c0b8f87b587ea81c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}