{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44625",
    "entityType": "User",
    "nonce": "0x37d2ca7da95b47bf3792173293a4c095b561678c5a6671aa174d30d6065648c8",
    "signature": "0x787f46955b2aea125d34b0b7911ca862db2c43ce6a50977329dd07559f0aa0b73f07c6a30d0aa208bce39fd3920c8a1a46b20c404fa0e45c471978f0168e1bd01b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}