{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1887966",
    "entityType": "User",
    "nonce": "0xc66af393af8259f6dc6b1372fd9f5416a1a2285e8a78a653d044f3e096258312",
    "signature": "0x21d1d57fbf7fa5868317ffc1515735ca934bb83c7aa8ea615e3bdfe770a5b3792aeb8fa3fced3a658656cba3b9a498c1d51407dd27c1a27c392a4f824cb711a91c",
    "signer": "0x05fC7F397A0Ef264c87B851B5C0E4336dEFaD23f",
    "userId": "483595670"
  }
}