{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12846",
    "entityType": "User",
    "nonce": "0xffd341957a22504ea377a6996eabe77dc4bedec3bbeb1bb496cf500fde831fcd",
    "signature": "0x81fae728a21209f3282673c262276f7b7f096eaeb9e25d152dc50cc8d221b5a02b051fe8d10e2c52eeabaa74db6a8f3c9aa7803cb91bb72b0c902259ebfb3bee1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}