{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0xff48aee6c20ed436bac6719544280df36c90bcfcfeb9181834453c8fdfb82a75",
    "signature": "0xd938b3e7d30f7d9d504c9df8784f27bb2855b60c569252e142ee466c10b2277d33b022c95bc7a75b00e4435dd2387a769ddd23554b84a21a9ef1978419c5672d1b",
    "signer": "0x9de29362DF595E6949CaA2820c5c28c3D6b0CEe1",
    "userId": "857551474"
  }
}