{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143226702",
    "entityType": "User",
    "nonce": "0x02316c1fda8cefa9e290b80d4cc6e194cfd570bdef23f452db4110db91e06407",
    "signature": "0x7e8ad392c7b78d9fad7a0328e851c035d039b22ec60672b46afdd3620f0e3328082f03e93ed2620ae0d16f922794d22fb951c9273d1435b696c6e9fc1ef169c61c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}