{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "349912",
    "entityType": "User",
    "nonce": "0x07d4e869baf26624d71fb7f98312be8a2b3fffa864226c59294552978f1bff95",
    "signature": "0xeae66b5d273d168b11fc3e6526be44611bd28bb016dd3e1c9105e26ed99a05db7174f88c5e9c58954e3e5edac4fa1bb9c30c21adec0621f6dda917978400676a1b",
    "signer": "0x3D8B2928f8C6d3a1605187DacEb37824a527A1cB",
    "userId": "394450"
  }
}