{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "425018",
    "entityType": "User",
    "nonce": "0x0e5cf11d745667f175b32d232c68155070381f81aea30cf378ca98df6b145e01",
    "signature": "0xdd387a73cec0c9f5b4f28487f5e66bd6a80b814f285583c81bced7bb55dbc81d392bc6273f1d4480ac8f4e9a65479f091f26be7fded2d54b1da6624b316b822f1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}