{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672",
    "entityType": "User",
    "nonce": "0x56696b0fda1237c541192af86c48e76c4dbc42ff2efcbb76a6d3781780f33ebb",
    "signature": "0x4c6858f59675e389ea96866979b89e0dcb0c1255caab4b00185058b5f4b224cc42e6d17f1b1771aacedcb53bbc932e13fd75439360adadd50183029ea3c6ba6b1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}