{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37826",
    "entityType": "User",
    "nonce": "0x4454f2e2c671103be5e44298f9a02e19648da2654cd28901b3c7235d8e016858",
    "signature": "0x3d32d840f50cd0fe0fe060a0ac61671f221b60ca1b5a9fdce5fcf4e1d2dbb8ee20eee62c441a54059dc76d4962618a3bcdebca294aea5c732ccddc74b4a9410a1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}