{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125178",
    "entityType": "User",
    "nonce": "0x6e6b3531921882d76e4b4317d269fd188cd677808d05e4551c51fac1c646643a",
    "signature": "0x900229d9d5fc3353d0adee90370cb9f12ef213b54895df4c9d5f72709fe805a003797b1e943f4d22f72da4d94853bb2f64605b3689faaf42788d8a551674c7121c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}