{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0x87222b43df8783b695c305228d49fd8211ecb118d716717d82abd6e01d9f2076",
    "signature": "0x082460450f6750efdc5148487992dc17c9aeeffa31fad1e3e0e0dc1590a3e94311809ad594ef398af53468e24f4656d4b0b6b00e4b00db448ae5a2926047f1dd1c",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}