{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9507",
    "entityType": "User",
    "nonce": "0x5de7686a911b478e60e6524b5b1a8f0c49f07bfd671d86f729d8bf94c9bf6ffe",
    "signature": "0x16a185ae61d2c292c9716b28e7dc223d847b782ff3ee2b130b5e4c7c060285da5d377300032e925e474570714b4fd010ddfc8a202999abac4c6c36d0ab6a95751c",
    "signer": "0xbb3a61e183bb067d10DEE2e5a00392DE9ca6B48D",
    "userId": "528440778"
  }
}