{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "126810",
    "entityType": "User",
    "nonce": "0xb273194a35fcb719d06d0cadb486e2b72def7442b1de7215b4c5deb65cfe6472",
    "signature": "0x74af8b4d90dbd16036e4fb4c8fa67b014dedc7478e45347fe13fc300ef44604a7ae99e8b315b0edf16deeaa9f702819fb8890f5849b332248e659bc916995f351b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}