{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "955974066",
    "entityType": "User",
    "nonce": "0x426f4887177325f06a807e0c1b86fabe76a3e5ec4aa18e1924d848a3de28cfda",
    "signature": "0xe0684fe88cb9ba04484f6bf6fb3a9164925ffe7794431fc2b5c8e51ecabc34fd62ed16e9c60e37e63fe3554dfea97c488a45995b65f850cb25f6c80afe34e6bd1c",
    "signer": "0x1f4676E66f85a00704B84876ae1B19DE3eff1F8F",
    "userId": "965243886"
  }
}