{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311829956",
    "entityType": "User",
    "nonce": "0x6269d1348c2524684d6b9de10011a37e7ba921f01ef6b0a6918f44680dbb57ab",
    "signature": "0x6fffb5245b23581bdbe46a0a938a74b57c1e616b46ae383378aa810b5cf9846a71fcbc429069c39357e60c0256f4a17f97509803f0e85708cb0dde2fcef69b801c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}