{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "197768",
    "entityType": "User",
    "nonce": "0x6aa3d896ac96669893a080742c1cd856399795cbdf855cf967107ca37e75d92e",
    "signature": "0x5c889cde7c0413619a6a1e4226522e218fe2e13ce14eb68a76c75f9c494ffa1f2c7bab6e0e6f6ab1b8180891cb75ab15ce7df08a38fe6dc449b043de6083536a1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}