{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1334982",
    "entityType": "User",
    "nonce": "0x9f853fec2104fcf9938f4d31a2fbb66df34968b46c15773106d905f725fa74b8",
    "signature": "0x55b1212c48fbba08c5aa62265efa793f55bccbdb8b9179160505070a46d68be06f5ae4352f553973c35f3df8c88781da72168c6af653519692a234c8f139e60c1c",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}