{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "786875",
    "entityType": "User",
    "nonce": "0x3c5bcd2f43875d0ea7f2aceda97a2fe57f25e53fc2d76a1bbe2749be3f0572f2",
    "signature": "0x60ca0cdae1cf91461f709a59653adcd88407523a4bf493deef13960b1448ec6b079ef8e48a1f43012684483da3dbe73caee0d182a0c5d32dd461a151d836763d1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}