{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "935264873",
    "entityType": "User",
    "nonce": "0x750f67fd5b20c1f07e914a763afeec78ebbcde4a63a78e7c8c7d0ccaf003b840",
    "signature": "0x5984f3839934c34cbd792905de353bc4e57877d51cb7a768205990506d0f8d8530c201ccb68f92d457b58f60c5ee6a3e55c0607d4382e86d058cf5bd07675a431c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}