{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58894",
    "entityType": "User",
    "nonce": "0xba22ed4699b81c8c90f3ecc9a3356dcad8d79644da8febabf189e3aebdcff037",
    "signature": "0xa52e13fcc479a48f4e5dca313f0f3eb87fcb5c1161e2b392bd99b603b08bdbde304fa39c75a94d0347283ee8952d9300a710a66209e661c626e4f90b050f1bcb1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}