{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6e9f2dcd64e877aab3fec77fe8f114190100b0f98222b2c5b7120d1701efbf5a",
    "signature": "0xe8780ad1bb1b4e875f12d8c9ab7261ca021af73c74295c915d30eba7467fa582793485501dc1bdb0420a089d2cd34d1e09019037c502ecc14972fc9c1091914d1b",
    "signer": "0x4ab505DBD73CB27C1457E037607E5fB3B27915f9",
    "userId": "186630"
  }
}