{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x2b9b2757a84a69b91f928977e0cea7f475d11b1ceb1c781f226884a8aed8018e",
    "signature": "0x9ce338819d829bf1e6405a8eb02150a2de8f00bd0ae16e53fcf076641ddd978c54bcefd7f771f1fe6fc275fe0ff617202c46b2aee09939d9a42e5319149998ce1c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}