{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14976313",
    "entityType": "User",
    "nonce": "0xf561a6136eb57bbda745bfdaa2721df513c30fe1c3f0e60957390a5b12cc817f",
    "signature": "0x205aac98d2ec114564fc467ac9b8df75f0ca968f308091273c9a20f9895769376a2cc1f7ae27e3e6ca1e3e120682280ee7f6ba360ab5b55a1dd3559649c9dfa41c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}