{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377610060",
    "entityType": "User",
    "nonce": "0xb2251ee974c288643d5b6a8718c32846cd109dfdadfdb31540554514c06f567d",
    "signature": "0x76a98eb0ba6b03c0e9925a51af91c79106c11b868b72396a2f110e846385a5717216efa36650327c2fb9a2c98170b64e356c0b33892b46aaff09a2d26a5e82051b",
    "signer": "0xdfcc4d06D5B8A0AF1AF77B1Ec434e5F50B625a75",
    "userId": "620921422"
  }
}