{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135298",
    "entityType": "User",
    "nonce": "0x353af5b2c3e41fd3548a7c78da2f5311871e7abc4466de57cc4f10d867a17956",
    "signature": "0x6988a0b8312696fe7bf7e385a18a3ad108df1f99ab5eaf113cb02da196fe5b7c08404a08282fde423599476cdb0ae1c10728115bd609bb494b115f9be890fd7c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}