{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xaf916b618ae0c3febdf4815dff6bb34111f16bc28a5c36126f20eed726c2a526",
    "signature": "0xb028be67fd88dc5294e81f6d55d5eb23e8b95f39390a7df36f11b1b1f8d2656d3f4b2da9c669dee4cc7dc90ecd97df0a96c663295b7f75aef048c452a7c6be691b",
    "signer": "0xFC64B2Ce4fBD6922262C921DeD45174e1bbAc9C2",
    "userId": "251933338"
  }
}