{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0x5c93392ac9d6fc474ea7dac9fc6df54f955db4386f6eb253dbb5574c6b0132b6",
    "signature": "0x3cdd8c839f41af7334705a01d3921949ad3a90c9b229ca614eb59b1b2e19e89e666599f9e89f4e70178829182a02573e1f3373234c425aa0f5dadf2162dc63921c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}