{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe07adccbbcb800cca1d4b5c408435bdbb47938276270e3b9f5a1c52d272793a7",
    "signature": "0x6f08257c1cf00623d0e77f5a19a00ab224d6d91ba8af48b85473a2e4bbc49abc443b0bd8f13aef2a06853c22f16ac83e8e5d938bbdcffa2116a272629e948f671b",
    "signer": "0xfC577feBb409AA095E990E5446388414cBFEaDbd",
    "userId": "29114334"
  }
}