{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12730129",
    "entityType": "User",
    "nonce": "0x44c9bcc3ee16fcffaeaa6e948d84a1f895cadf40331aa513fcc2c6b32413812e",
    "signature": "0x96066df0ace66d6734e5fe6a21eb1effae7a5a6216b0c29bb10d89c93322c74b371681d4742782cc16055ab3962b3654609ac1fa21a0677019d05093cc0cfc221b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}