{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x8d29b622d12230140845c87c6e0bcfd3ad7a71448fdc19203e350a7c98cccaf6",
    "signature": "0xa7d0ddff06cf50855b80594a01703f3ce50bbbb3f3c62c4a0bffff813633483f33fc2d9cbd75c451f4c299262efcea768be6b86e5b6ea0e39560b5437138eed31c",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}