{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894901",
    "entityType": "User",
    "nonce": "0xb38919ef0d5e18d8c399c547b507e9f6c69d8566a9973806d76ea489770f5b8e",
    "signature": "0x17cf7757fd7aeb3aaef7473dc0a56b125c55f057e5e9cd267f500755fa9c72151690bd13e52f183fd124a108c94b3f98c8ca9b0c73b6be1821c6aa73b2ceeff51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}