{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "150849",
    "entityType": "User",
    "nonce": "0x947f7a0649fcbfe185d793e4e10e394f2869c0a61ac5224f4f008c81fa1c72ed",
    "signature": "0xbd77dbf151a412fae55c580c00ce9a90ab213300de8fa8a2ade1bbb0f952cc381042f3c6c2e487161bd961749245fa80cf6597f7bb65118c9e5ac2bbf6a6f0c21c",
    "signer": "0xc4118DbEEF2f4052A1Ccf7587423749ef4313b4F",
    "userId": "635458432"
  }
}