{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216570",
    "entityType": "User",
    "nonce": "0x1e2c8eb0b23cc76bf8a534a248ea152947412f6cbd277c0b14569f42ae85bc4f",
    "signature": "0xecbf4f641c1d2c97c14f44ac29616f84f5e0bea2058c87021d36e06e0cecae333c28e4b3bafe68f86286523f25cab24e19e2f66bc9547c196ca7017aadada9301b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}