{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354979",
    "entityType": "User",
    "nonce": "0x75b414d55a3b7d182985ef9ec38014acd292ffea22310c5727f1aa8c26b671bb",
    "signature": "0xb4a186228cfd59c3ef363c5fa432ed55db70adb37217a4c3ea9e921073e95f5f347d72a871e40882c2ef0187dd3c1b2743c4e320de8ec8a1be8dc9ef96260ec51c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}