{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1054428",
    "entityType": "User",
    "nonce": "0xd98e96efe2e93b373deacfa587dad9e338cf245bc02708c395b3d069877a3b7d",
    "signature": "0xad8ad9d76fad792a7babfe2d772c237c52e2debfb1bc73ee53a4f5ac47651d396be0448f6fead12b735d09684aa64d80290300bc9291e42aa14b5f276fe082a61c",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}