{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73513",
    "entityType": "User",
    "nonce": "0x25dba93f156491932eab18c3ce5defe3cc7bb79ccf5031f1c1c8c673f62d4781",
    "signature": "0xa948582f2b4889596badf22d8f584e1d4d4347a47afb4cf3b0e66af4b90468f352a974a53cbcf826eb00cc90d0a87887158d9919c3d807c3f14645549ea383481b",
    "signer": "0xDe33C1C09bC9E9A8AF10bd9d91286bB2C590E753",
    "userId": "364575756"
  }
}