{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0xf29536b5b89f3a6537260ed382d7d213c2e746e1d1f84077b1c73e334aa8d258",
    "signature": "0x7a099a7ffef0636278823abad077cbe7300c5a2cc57939b64bdc69e6decac44d5d544a084b73a513307f75788770d8ab35e7c2f8d35479d62edb2d904d6605d01c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}