{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9bae4249a718086f799da1abc3c62c4bb18aaca94c4701d0d5daf152c3f25502",
    "signature": "0xca3484385c1175d44f9f18a03007a34859eba86e23bd8cece3d594db24d5d3dc26b6a69e08c9b3ba9c01d33621c8c6caae0791e0aaef4a2516f2d4566a4894a11b",
    "signer": "0x9976A5bDB93F69653188778fe013ed45ca0c2Ab1",
    "userId": "85051708"
  }
}