{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330245235",
    "entityType": "User",
    "nonce": "0xf7c683f9cad59cb66ca1e9ba1128d161917f2f144c593c6dc2725e2c21fb0387",
    "signature": "0xf4260249e7e150ddc161a20e633df1eb38e78fcce63b04b73120a839048fa9186b7be19fc0cb22eec2aa40fcb3ec0d9e643de540aebb0164a84069ef3394dc851c",
    "signer": "0x76433fcfc10E04743aB4EB98660d4B47526AD243",
    "userId": "328228955"
  }
}