{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d9cc74acd5521ce74c25c2fb64b1830cc8f5a2e2bfd574e160132517dfe343d",
    "signature": "0xdbb3f0a2706d7f586c2f1411e763e01942b943bd776db6d78c831df4bb55a8683f652ad0e5c3f1cb037158576b254768bf8090f697413771f588e6f11731f2421b",
    "signer": "0x08908f638C30497FD08796a51eb9d09b51Ff96bf",
    "userId": "449886573"
  }
}