{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5999",
    "entityType": "User",
    "nonce": "0xf236ba35621c5d8b754eacf0585bb9d364322fb62d7c57ed6c4ef07d0c246adf",
    "signature": "0x8725ea2ad043c8ee0fd171d1f997cd722a3ea15a4ca5606741bf8a03bd83eeb938e4f54c11aee8481ef6a03867300c82e5b7db31180f44c78d08348a226da2401c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}