{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511280302",
    "entityType": "User",
    "nonce": "0x8968bf19f3ac440c38f05cd54df0f4e414f411f07e238c1ff0101bec1a995fc5",
    "signature": "0xc62f5818fe06fa4a71fa2b82681754a9a189ba6c6429ff06074f558c5153c31568dc41539938fd202759faae5807a673725dc0a6378d63a5ac08ee8413af3c461c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}