{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14640",
    "entityType": "User",
    "nonce": "0x31a5951246a6e3aafe4f308d52df853bbca7580c762d1241924fbb1aa573340d",
    "signature": "0x92ac44c5346ea033714a894dac31e7c926e70aad219b02ac01406b8df8ff0f526e2a30026bbde90f1784c866877be37053efd40598c5a2c9dd53cb45d5ba01171c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}