{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210635",
    "entityType": "User",
    "nonce": "0xc241864ba1ec804c21a53f2cc95402970570312f018b02acd28e973c9b9faf3a",
    "signature": "0x04250887bcd85dc420b9f95e01019edd819d38299ba244b59c3dc54d472ed5b54e0ca9576c9ddcee72e3949ea3ab6f9cf0f28b6b58f9b61d1cdbe4f0e15d82011b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}