{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275305",
    "entityType": "User",
    "nonce": "0x616567dfd9b99de1e36eba0bfc4e9a32cd00e2277f7bd51e035127ae7cfacd5f",
    "signature": "0x6cd3f56403bfdc7436a410dfb0fb111e8bddc2743ceb90f625ac96b426775c114ed7a8020078842d2393a1b980d92c3c344641897957a2b777c5570ef308aa441b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}