{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xb2ee87462a0b3173d08280d3603392a844fcaa54a0d26fcd5132142fad19f2fb",
    "signature": "0xd31bb30c102f14a68e25891814b0e6b4874f4aec264ffea340577c3b6c76e8de14b14809ab50f331ab45273af9ececceebf62acc6588d053ce1d1f7cb634ec851b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}