{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194071",
    "entityType": "User",
    "nonce": "0xaa9273408007f71da881a297b5e293b7926bdfdac281328cbfd0c91c979b4ccc",
    "signature": "0x36b0c1b3fd07b3102b90760c769296b298d667baf07f69791cdb7a90f587d37345554ff3a9974d41f491dd7102b8ca855028dfccc2c118dcf9c6a4610e1098071b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}