{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x645d0e9df6c5289c2de560deb08c5e376476cef8bd0e7e924edd26eb027c1921",
    "signature": "0x0c9629562420296b737b0396958da7c20b339fd9dfd00ddee352e1ae707be9765637845a6597ae33590a4182a68bb6d9b1e4d68c40bef6fa22452dbf98fa5f991b",
    "signer": "0xeFA2ddc45870bF116329a9cdF95441d94a34A23D",
    "userId": "135155773"
  }
}