{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x896165ed9d41a7f69739ef3f38a6a3bbb8aab14100feb74b04357757c04b275e",
    "signature": "0xc3653349bf8d805a67a97f8a2062b352296b1e97f2cb66e4f8d70101801e69965091c9504215ae80f7d69c998b733fa25419d815290ed86a8d40e30ba6e7b7641c",
    "signer": "0x8FfE4D68AfdF34240202742331b49cb462b7e26C",
    "userId": "660197861"
  }
}