{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "846471257",
    "entityType": "User",
    "nonce": "0xd00bda5ad284f9c4242c699ef47a6ba2af3d5253c5e810aae981b21baba9c908",
    "signature": "0x6300fecbcba021b135852f4deaf917d6d5a1fa146c755020af45b07b1a34b31f3e079690d0bb6703b4c1f05b47ff7e4339a0a6f32eb49d2b27fa40b17341afc31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}