{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154236",
    "entityType": "User",
    "nonce": "0xb73a00528715c274f6b812f74c060bb882e9fef9543292384500a2716107bc16",
    "signature": "0xc4cbc802eb69e53ffb1c4e7a621e2e34ecfb01e452420eb9ca42680ec2d90256559fe511aeffa31b00882c31497500992a731fa1d9ecc0d40b64364fa6323faa1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}