{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc7f23cb3c6b116ff1d58fd7c8d82496d22ead0784f96dc8c582a3c8316038986",
    "signature": "0xcd3fd3c94e65e129917487e0aea1a200aebece47f30f809a7ddb9da6d06c6d836a63c3154ed3a9e546da47a8cae1ab8859cc5255ba9556763f9fe23394a8ca291b",
    "signer": "0x4C413aA16AB0452da796Af095ae4D4C4B82F5f32",
    "userId": "44882442"
  }
}