{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x2bab13394f1fc792a34bb475146d960d5fb034ee25f6b72b52fb6a3aba228070",
    "signature": "0x8aff6604f750d104afa2b1f9f965f1601ee8e7b21c6a0e54329eca803c336dc04874fac69e9a7ab28648edaf4a2a6f722a49dc4d2bd520ff98364634c34f58681c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}