{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1143fe909184d4e68276936064184aa4bed6ea4202aa6c50c0b66c38386c2e2d",
    "signature": "0x1df8f74267e7f990f16dff6bf728c7e492ccc1665ebebbbc7fc6c14f5ef986f212edd808e993388d2b027ecde7e2f30fdf05053202c47e1c3206ecc4704995e71b",
    "signer": "0xCEb3315f3A11ef494F33B40dE3541224635532Ba",
    "userId": "514261965"
  }
}