{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8957a9f4a836547a4a416208aecd0aadffdb6b1c4c148ca7a2cec101ff0e2d64",
    "signature": "0x544cd0dc9431442c7ebf4ba76a2c412d5ff456ef3f97c63109a4f1d07028e6365c6467fca3e58ad85ffd5708a84cfd1710dc6658d0405bc9e21aa3e4ee0478241b",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}