{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83223",
    "entityType": "User",
    "nonce": "0x2f4e7eecebd75f672115c881d1ca65b85ed2df09da1058eaf4cf50e5de6d7975",
    "signature": "0x3ce55a9d84427452bf41243a514d21a88ca56f5fee79c31b289dbde09f6ee53f606c819978dc1347b5cb6706f92eb6243895af1b6cfdab655c5f672800b87f1f1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}