{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745382175",
    "entityType": "User",
    "nonce": "0xe6e18bb30173650458d38a168cb3a551d232b8f8e9bd3a1a0d8dbd0e4d6971a2",
    "signature": "0x2082f88cbc1f44882375b89f5e6442b2b8a1cae7b502b5fa38014c0a88a3c8c5636d3e031e87611f080f9863c042885633f367e3c1dda4388d02b1e35303cdbb1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}