{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99670",
    "entityType": "User",
    "nonce": "0x8201977349c1ec42ceab70bc5aca952b4c659dbfc0cb4f763322c2524b8b4630",
    "signature": "0x1087724b2a16c6d28cde5d667129d6eae05bf30e15844ef270cf9931a04ff8f47875ae8633cfc0696f6ce0083e44e6ad2236de5ce2010c43d4c2a94a5903146c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}