{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8475",
    "entityType": "User",
    "nonce": "0xd7165a8f6b0cd24fb99268c70dc1fde9f3d99d1f3aabae2f83290cece13dcb0c",
    "signature": "0x6e18f2415c912dad2f9a62f0545e4424deb9af1718836cc16773ab08c3f177b50b7120c5bf6aba1259b99a2d4df01c024c549be81817a7a5682ebdf953de43971c",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}