{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306412",
    "entityType": "User",
    "nonce": "0x47a6ef74a477ab98928b245df32ff198a3a5bbefcfa5e182ffaae72300e9383e",
    "signature": "0x0f3dfbde3fb1a947771fb4d39c7f6005bbd8810f574b336f734a6cd52596a0e23ec2dbef0a1ddc88aba2c1e99207ca09dc7a38088cfc4b52e046bf6c396cdba51c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}