{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "197808111",
    "entityType": "User",
    "nonce": "0xbf7e81a29c0bc2ce18d2270fba70b94d8ee302d94524c9486216c6d009a89b55",
    "signature": "0x238ea4aadb22c7069f11786c06d4e07c1e510dad855f53c5010dca2003581f6b2c3e47f3dd1a05f0edf535acd8849c9902ec0c3623890dec9916e79e72409be21b",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}