{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363454",
    "entityType": "User",
    "nonce": "0x6b870f22609e5fd5f14c78deed359b0c1cdb4a9664328b323f92e30c4fea7d54",
    "signature": "0x68af5b612a8a0a45cce3341b8530ca259a1076754dbebee554753606095108b63c27c76dfff556778d0dbd3f2cc552cfcae2a3ef7964f02959d606295182b2501c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}