{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x35e7425586f1a64ff632a757353e6a2fb24dd6998759f37eec67d1b2513a05da",
    "signature": "0xf3999b4a4be43705370d683a27a4f81e41df7ab79e7be4b0305d2c2c918fc3d26f4a054603e06643a5916d811f06d81258fa574cb969664803c797543f8380461b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}