{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134429",
    "entityType": "User",
    "nonce": "0x976a72bde6c355934c5d222fd54466f52f13b38ce0d6a63606b78900d74d89f8",
    "signature": "0xa3119de15370084e97f9937a0c89854cae56c04a34da467081588006f1ba900d692fa2e784414ea1584fb276dc313fdf6791cbf00b0f4e3b8861a9d56633c8881b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}