{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "520317695",
    "entityType": "User",
    "nonce": "0x9095e1a14a18fb68fa341b00c410896f045e67db5ed20d29d281c1a40460ede1",
    "signature": "0xcd28d5ba0e0c8420bee1698bd6065afb3a0b3084808e7b079254e7960ff3141e14cd88e851f0ba545fc675ec6926e681436a46c3fd6f6acdce75f8bc1068960c1c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}