{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0x8696f6ed2ad535428028eb2f83df5ec1c70bfe6b096ac22a65272c32400e8384",
    "signature": "0x136d6a69f40cfca62bf366edce6ffde57a2f0e323d883e2c893530a631c599836d642405ebb1cc7f5bcd62a7ec142e68a78c5f8e96ed17294c4a8710fbde1ebe1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}