{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x62cbd140b0935d3a8e8cb78841ac8337b65d67dae1b2597936d1a5352ff0cc0d",
    "signature": "0xb146e026adf51767fe6550bc60d470fd72b2eeeb68506f67033f5689e0bcb1117ded19b9677aecbee6326b663a0588f72c4ee1b119ae11d4a9cdeb3c9c87d3f21b",
    "signer": "0x3151146a809503D41a4ADbC50d7B649ee8284a73",
    "userId": "216847108"
  }
}