{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x64dc1a4e5f7adf3f9cee9434b3b32d47b382477129d3837face2795f9af9fb06",
    "signature": "0x0e094017d4376938a01a729d2e615ee0a13c023bc9afd5a349e44ab8f4c82da91f391478625ace23dc29dcdaeb783e9d6e9817499b22f3e392ed808e104aa5021c",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}