{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275210993",
    "entityType": "User",
    "nonce": "0xb146fe7c481be96747ad24b82346f3ab96499b44ca79e296e80522c0aa33293b",
    "signature": "0xf4cf4f4a7a11647a0d68b633ae19c6b88b1d590e85cfb30508e5d40298d10bdc0cd3e54ebf73b26d4b22b301153db0278fab96bd558beadf255d9ae9a1c9be441c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}