{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125178",
    "entityType": "User",
    "nonce": "0x84660801a97073938dcf82e0951dff31e6efc527b512e0bfac1325f54ca3a03d",
    "signature": "0x366965c4648b4a4dc0b0b7688142be041527f256f6aa286ebd9f6d4cbe1098890b5ddbc94613800200be8b4e16ceef0e2b0a285c8c787ec2956c94bfb30bd3f31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}