{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "650714154",
    "entityType": "User",
    "nonce": "0x593c1a519b1ef95dddddc013519fa5a7119f4d281735028709436e89f56270c0",
    "signature": "0x4f2d13bb4ae6fcaff3b7b0fe117b40d4eb9ce5c3fd9c59ddf399cfe866fe034a395af7047c3bb41a0cb840327e1a9755a0baeb82966ca22332c2e7baed3db72d1b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}