{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759966935",
    "entityType": "User",
    "nonce": "0x700b49a566abe50267b0c338876460cd54e2c5f0859f2d4bc705dd952036528f",
    "signature": "0x90dd818ff77cc1f0776db757a5d195c7e5360273fefe3895479a74106f440e197120be527a0960d805d6bcf7592d610f76a66a38689bd9946dc79696b4163bc81c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}