{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xbb2229b16304703e0f91b3ecdc3c315ed59173aa4e85cb1b745ca81d29223667",
    "signature": "0x06507b8eb2422049f65ce50710f1217118e9f9b65cbe993cb84f6f050d3738d17459737550e549b3e109c048edb310572bebabc18df789d9ecac04ed1484bf0c1b",
    "signer": "0x303474a52E301Be9e4641439FC0b3A8C471B1d66",
    "userId": "595883218"
  }
}