{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "963075181",
    "entityType": "User",
    "nonce": "0x124d9af2964600eebd093577aea6451547dafaf4cb503c39653281d188004836",
    "signature": "0x5f76aad3fed56e71844e6d97fee9609883ce99e013b117bfb532df85c5eff26b61cf69e3933fb4d6cac81678777303c90fc072f201af32386857e049bed3bcc31b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}