{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511136389",
    "entityType": "User",
    "nonce": "0xe68ca60c19a281b07251bff817d3ab4ce131d1860d04e3a7160d9d3deeafd5c5",
    "signature": "0x3e251bb91d9d97701c0850085b96e9912058daf5874b294a931a3d215abbc877451c5d1388e23db66aa0d14bee17988385306a3514af4ffcfbc91860c61bf2921b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}