{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "644286186",
    "entityType": "User",
    "nonce": "0x88cb6eda523f2f91113afdcfbad68816b515f50126d9883dfaa36bbfd1a05f51",
    "signature": "0x4485184486c384c1c76a2beaa10bfa2188b984fa3997b972aa274dd58ca90a090edb20122603f8dcbae05d1739bea5c77944df0e8574769ac7a0024ff8ee851e1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}