{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129173",
    "entityType": "User",
    "nonce": "0x217dac3369ff3c32e043c6baee1de7b072ecd80fbae98c9490490e4aac3e9ebb",
    "signature": "0x1e86e70b335a1b7ad9604cf6a60a40e74c978061c7ccdebb0423829936948eb854367c5a7ed5216487c5e466740b03c925eb98693aac8a452e8073c3f1c368e81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}