{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "815073450",
    "entityType": "User",
    "nonce": "0x6c07d76f556e704d51b9f13ec2c0ca0090bb299fcbb7108290770b2cb7736ee5",
    "signature": "0x753120c3c182a4b8f76b3b99d247ee57d0e9f00bd5858df6780f5ab1727075385f602ec55a845f08b857308739f262f24e806daf1534a2da26c54515d1ecb2a11b",
    "signer": "0x67E321241D4e44e5aB5D1c365505f0F33044C7BE",
    "userId": "460631539"
  }
}