{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "725406",
    "entityType": "User",
    "nonce": "0xf68f10a4340021b6f6a1cafda71c4e8891ea253e0cc224f0be23096b88f10515",
    "signature": "0xb4168097d2c539ccb204eddff0436703fd4d906c9429be3d1330c12397e48deb25fa779e57449842bc0d69260864983591adc21a14ddfd32afcb7b00f50d71b51b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}