{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858479840",
    "entityType": "User",
    "nonce": "0xe8512393ab411983a8e43111db6d7c72b35a2f119c57cc8bb315e3fe636af0a7",
    "signature": "0x7660c1752d2acb90935dcf10af6351035458822ddd467bed861ab1f04be83a53018a24c64fcab3b35d13520578d3b0fb3aaebbe2fcc2ac0da6812b6692012c061b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}