{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "761563",
    "entityType": "User",
    "nonce": "0x4e5d465786f79dead246c263224959dee2d72bf81ab8f4e659872001c5feca29",
    "signature": "0xaa4aa0a19d0902ad64be2f8a87ecdde1ebf3e30f320827b6ff3b67c2d3e392461a658de2d328764ab416717c1a282ddb30fe452aad9f9c1c16ae8eeabdb4566e1c",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}