{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "260878",
    "entityType": "User",
    "nonce": "0xa29b913c942da4fe179bb3969743cf51b8aaa86f42bc0ad1b30dfcab6ff83a1b",
    "signature": "0xdf947199913aacd88d2e4923142fe7647d9a2e7530b3d44227ab23ac8e8509d86f48b7eeea00101d236a1829b266bdda7033e3445e3495c3f20f7192d6d23b681b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}