{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1450501",
    "entityType": "User",
    "nonce": "0x9916f0a24a48c71cb780b1cef7b9a35b414692db3e08414ca04e914385c86c32",
    "signature": "0x1748ddc2499c2f49a241e04e1a6f1fb612d69cdba8199dac4af59d67174153470ad6f42176395aa2a061ecf3a780565b3ef1a27906f3077957c8766e3b3c72641c",
    "signer": "0xc5feD1872BC05Ec03aF299E6A4B8B81D9d531925",
    "userId": "599834673"
  }
}