{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2154",
    "entityType": "User",
    "nonce": "0xc682e8fee3c70dc7633e9e687fa95a544e3f2077503f20523a3330a0f1465664",
    "signature": "0x469d2e98b0f4c59dd19b55d806142d8c03509802379b00853bc26b7c764bda6b13f1bf329723248e3ef3ea1b64c7a1115c2083dd4d87c0df68d8f764656f77d01b",
    "signer": "0x647947a3ef2a535a313f58Fbb1bc4787eA6d49e1",
    "userId": "102210880"
  }
}