{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1906252",
    "entityType": "User",
    "nonce": "0x6b9a3207c3c8a299d183c6ddd0db5bd5763dc3556bff434d6d4405c71c91e3f7",
    "signature": "0x90dc7f17ce1a5f2e135ee1bc2effdcb3c8bc2852d67aee5eb56f81a77468957940fa097cf96afd25d2cfe76aa9b31ad30996dfe4ca7301620116418b2c15ec1f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}