{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261999",
    "entityType": "User",
    "nonce": "0x2ea702445be66fee8bd09239f6854d49cffb3e1cecfe0fb201455cc0314e7cbe",
    "signature": "0x7fe5a721ae93ad613ea882e1e09e96ee6f58a71d70b3528c9baefcab5747076d6043f9b70a678062d3fe7f220a6e142a83175fa5274b33758c3ff86a5fe1c0011c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}