{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x024ceabd7bdcdd684616cc38102f73e4bf560d4c9a1ba3fa260d7db20024dade",
    "signature": "0xcc8a5764132dcef87e0e2498fe21e26ad52485516fa0a82344289c5d028cb1fa3d32db636ca3c6d8377e65a8787be4a51aca6d3ade7bce3895b8f86915ae35961b",
    "signer": "0xA0422c5Abdcb05067C50eE413CCB0eE807F4d9eD",
    "userId": "206551388"
  }
}