{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "272371234",
    "entityType": "User",
    "nonce": "0xdc630c62cc241bb6c0127f6bb93804ba44ee55055a202ee01a6412b97ce8ea56",
    "signature": "0xb65382acc4f1596b39120a049d8351abde6a4ea10106451f25bd847f6329f1e0418e4b46118554c1157660d218d3010d67c82b48be7e02f79b80bcf5de2074151c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}