{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381478870",
    "entityType": "User",
    "nonce": "0x8f370363b0608fa3c3cafc7b6cd4084da7f9676bb4efb4f24350fd9acdfe41ea",
    "signature": "0xf104991bf0ffe7684032f719230da535d965b94f80ce7132d6dcd50bbc0620a902c114f4544c0d1d202e8c3d7eb325d936c40fffdbb894ebb0de16b0e90c514d1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}