{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620921422",
    "entityType": "User",
    "nonce": "0xc55b2fa8f9b92eb30df7221c0a623052d5d448e3c02cdd15a0dbc2695c3378d9",
    "signature": "0x00e23da673edc31936f80c655f8bcf2d76bee106635c84695d48b8b80dcf15692ee50bbc2ee0f6384a1c94f7bf1eac2d6aa661d8d93bc3181c764a07f6cc8dc61c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}