{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "877849833",
    "entityType": "User",
    "nonce": "0x9c6d505587d2ef1bde0533123c33635c6de0d9503f8202ed5be90a0319adea11",
    "signature": "0x5f802db61d3178d27dac9055c6e01a91608bae574c519622505fe346fc90dacf79437191e9d5dc6d7850d43efae88095f52d1ad2d677eb0dc7da1c43d416d7bc1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}